Estimation of rotational temperature of ~(121)Sb~(16)O molecule

摘要

The (0,1), (0,0), (1,0) and (2,0) bands of B → X system of antimony monoxide have been excited in rf discharge tube source and photographed in the 9th order of a two metre plane grating spectrograph (PGS-2). Intensity records of the rotational lines have been obtained. The intensity measurements of Q and P branch lines of the above four bands and J numberings are used to estimate the effective rotational temperature of the source emitting the spectrum of ~(121)Sb~(16)O molecule. It is concluded that ~(121)Sb~(16)O may be present in K type stars.